Phosphating process for zinc-plated metals
    2.
    发明授权
    Phosphating process for zinc-plated metals 失效
    镀锌金属的磷化工艺

    公开(公告)号:US4497668A

    公开(公告)日:1985-02-05

    申请号:US554879

    申请日:1983-11-25

    IPC分类号: C23C22/12 C23C22/13 C23F7/08

    CPC分类号: C23C22/13 C23C22/12

    摘要: A process for phosphating zinc-plated metal articles, particularly electrolytically zinc-plated steel sheets, by treatment thereof for a short period with an acidic phosphating solution which, in addition to zinc and phosphate ions, can contain other metal cations and/or anions of oxygen-containing acids having an accelerating effect, wherein the phosphating solution has a content of Zn.sup.2+ -cations of between about 1 and 2.5 g/l, a free acid content in the range from 0.8 to 3 points, and the acid ratio of total acid to free acid in the range from 5 to 10. The phosphating treatment is carried out for a period of time not in excess of about 5 seconds.

    摘要翻译: 一种通过用酸性磷酸盐溶液处理短时间的镀锌金属制品,特别是电解镀锌钢板的方法,除了锌和磷酸根离子之外,还可以含有其它金属阳离子和/或阴离子 具有促进作用的含氧酸,其中磷酸盐化合物的Zn 2+离子含量在约1至2.5g / l之间,游离酸含量在0.8至3个点之间,而酸的酸的比例 游离酸在5至10的范围内。磷化处理进行不超过约5秒的时间。